Re: Propanolol
I think doctors are really good at not acknowledging side effects and withdrawal symptoms from meds. We seem to come across this time after time on the forum. The thing is that everybody reacts differently to the same medication. I was taking propranolol at 80mg for around 4 years, reducing to 40mg when I was swopped to another beta blocker called Bisoprolol. I take only 10mgs of this but apparently that's equivalent to 40mgs of propranolol, so the transition for me was trouble free.
My guess is that your anxiety symptoms could be your adrenal system missing the crutch it had with propranolol, which of course stops too much adrenaline from hurtling around. Even though your dose wasn't high compared to what some people take, 40mgs was your personal optimal dose, so to go from that to nothing wouldn't have given your nervous system time to adjust. It probably would've benefited you to reduce the dose gradually down to 20, 10, 5mg.
I don't know how much the Sert' comes into it as I only have experience with beta blockers, but other members will be able to advise you about that i'm sure.
ISB ☺
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Without fear there cannot be courage - Christopher Paolini